Disney+HotStar Data Engineer Interview Questions
The questions to prepare for a Disney+HotStar Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Find the longest contiguous subarray whose sum equals K using prefix sums and a hash map.
Explain how to detect cycles in directed and undirected graphs using DFS, recursion state, and parent tracking.
Assesses problem-solving skills across core coding and system design for data engineering.
Approach for handling late-arriving records in a batch ETL pipeline without breaking correctness or forcing full reloads.
Explain how you improved a slow ETL pipeline on multi-terabyte data, including bottleneck analysis, tuning choices, and validation.
Design a real-time event pipeline that can handle millions of events per second with sub-second latency.
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Evaluates decision-making across data stores for logging workloads.
Tests resilience strategies for recovery, idempotency, and data correctness.